/Engine/Plugins/MovieScene/MovieRenderPipeline/Source/MovieRenderPipelineEditor/Public/MoviePipelinePIEExecutor.h
This is called after PIE starts up but before UMoviePIpeline::Initialize() is called.
void OnIndividualJobStartedImpl ( [UMoviePipelineExecutorJob](API\Plugins\MovieRenderPipelineCore\UMoviePipelineExecutorJob) * InJob )